Experimental demonstration of arbitrary waveform generation by a 4-bit photonic digital-to-analog converter

Gao, Bindong; Zhang, Fangzheng; Pan, Shilong

doi:10.1016/j.optcom.2016.08.083

Cited by 17 publications

(10 citation statements)

References 16 publications

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“…Benefiting from the high frequency and large bandwidth of optical devices, microwave photonic technologies open the possibility of radar signal generation with high frequency, broad bandwidth and large time-bandwidth product (TBWP). In general, photonics-based microwave waveform generation methods can be divided into five categories: spectral shaping and frequency-to-time mapping [206]- [212], externally optical injection of a semiconductor laser [213]- [216], photonic microwave frequency multiplication [160], [217], [218], optical frequency-time stitching [219], and photonic digital-to-analog conversion (DAC) [220], [222]. The comparison of the key performances of the main methods for radar waveform generation are illustrated in Table II.…”

Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

“…Optical frequency-time stitching is another interesting waveform generation method that takes advantage of both electronics and photonics, in which channelized LFM signals are first generated and then stitched in both the time and frequency domains to form a large-bandwidth LFM signal [220]. The channelized LFM signals can be obtained by using two OFCs with different frequency spacings.…”

Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

“…The prominent advantage of the waveform generation based on a PDAC is the superior flexibility, i.e., both the temporal duration and waveform profile can be arbitrarily designed. For example, in [220], triangular, parabolic, rectangular and sawtooth waveforms are generated using a 2.5-GSa/s and 4-bit photonic DAC. In [221], a 4-GHz LFM signal is realized based on a 4-bit DAC.…”

Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

See 2 more Smart Citations

Microwave Photonic Radars

Pan

Zhang

2020

J. Lightwave Technol.

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287

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As the only method for all-weather, all-time and longdistance target detection and recognition, radar has been intensively studied since it was invented, and is considered as an essential sensor for future intelligent society. In the past few decades, great efforts were devoted to improving radar's functionality, precision, and response time, of which the key is to generate, control and process a wideband signal with high speed. Thanks to the broad bandwidth, flat response, low loss transmission, multidimensional multiplexing, ultrafast analog signal processing and electromagnetic interference immunity provided by modern photonics, implementation of the radar in the optical domain can achieve better performance in terms of resolution, coverage, and speed which would be difficult (if not impossible) to implement using traditional, even state-of-the-art electronics. In this tutorial, we overview the distinct features of microwave photonics and some key microwave photonic technologies that are currently known to be attractive for radars. System architectures and their performance that may interest the radar society are emphasized. Emerging technologies in this area and possible future research directions are discussed.

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Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

Section: B Photonic Radar Waveform Generationmentioning

confidence: 99%

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Microwave Photonic Radars

Pan

Zhang

2020

J. Lightwave Technol.

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287

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“…Photonic arbitrary waveform generation can be achieved based on optical spectral shaping and frequency-to-time mapping [60]- [68], time-domain synthesis [69]- [84], and photonic DAC [85]- [98].…”

Section: B Photonic Arbitrary Waveform Generationmentioning

confidence: 99%

Broadband Cognitive Radio Enabled by Photonics

Zhu

Pan

2020

J. Lightwave Technol.

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Cognitive radio is considered as a possible disruptive force to improve the spectral resource efficiency through sensing and interacting with the environment. Traditional electrical technologies to implement the cognitive radio face challenges in terms of bandwidth, resolution, and speed. In this paper, the concept and architecture of broadband cognitive radio systems enabled by photonics are proposed. Key microwave photonic techniques for the architecture are reviewed, including the photonics-based spectrum sensing, the photonic arbitrary waveform generation, the photonics-based self-interference cancellation processing, and the microwave photonic dechirp processing and radar imaging. A preliminary demonstration of a cognitive radar system enabled by photonics is performed. The future possible research directions on this topic are discussed.

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“…The power fluctuation, which induce the output deviation from ideal value, is the sum of power errors from all wavelength components. The maximum value of output deviation is shown in (5).…”

Section: Operation Principlementioning

confidence: 99%

Experimental Study on a 4-b Serial Optical Digital to Analog Convertor

et al. 2018

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Photonic techniques have potential to overcome the limitations of electronic digital-to-analog conversion. A serial optical DAC, using fiber dispersion with optical weighted wavelength multiplexing, is proposed and demonstrated. Serial Digital codes are overlapped regularly in time domain due to dispersion-based delays. Intensity information for the conversion is extracted by synchronous gating pulse train. The system is operated with a high precision time control. Performance of the ODAC is experimentally investigated by establishing a 4-b 12.5 Gb/s system. The linear transfer function is described and an ENOB of 3.55 is obtained. The proposed architecture could be easily modified for better performance.

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Experimental demonstration of arbitrary waveform generation by a 4-bit photonic digital-to-analog converter

Cited by 17 publications

References 16 publications

Microwave Photonic Radars

Microwave Photonic Radars

Broadband Cognitive Radio Enabled by Photonics

Experimental Study on a 4-b Serial Optical Digital to Analog Convertor

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